The review found three ways rtss-profile.txt could fall behind the profile. Every write after a run's first one saved
the profile before the line, so a kill between the two left a line whose value the profile no longer held, and the
next start took the game's limit for the player's (rtss_restore_plan LEAVE). A put back whose write did not land kept
the line, but rtss_put_back_done cleared S.changed, so a later limit took the run's first-write path again and read the
game's own limit from the profile as the value to put back, overwriting the true one in the line. And put_back removed
the line after DeleteProfile without checking that the profile went away.
The line now carries the value the run wrote before the newest one (rtss_decide.h RtssSaved prev_limit and prev_den,
rtss1 with two more fields; the file came with this branch and was never released). rtss_limit.c apply writes the new
value into the line before the profile (record_before) and drops the previous one once the profile holds the new one,
or returns to it when RTSS refused it (record_after), and rtss_restore_plan takes a profile holding either value for
the game's. A new owed flag keeps had_profile, old_limit and old_denominator from the run's first write until a put
back lands: a later first write keeps them and the line's values, a failed first write leaves the line alone, and
rtss_limit_restore tries the put back again at the exit. put_back and restore_left check that a deleted profile is
gone before they remove the line, and restore_left's lines name the value the profile held. tests/rtss_limit_check.c
covers the new fields and the plan for either value; tests/rtss_worker_check.c checks the line before and after a
write (state_record), a run killed inside the save of its second limit and the next start removing the profile
(kill_restart_mid_write), a put back that did not land followed by a limit and the exit (put_back_owed), and a removal
that did not land (put_back_undeleted). Lines over 120 columns from the earlier fixes are wrapped.
Not reproduced before the change. Checks that passed: tests/rtss_limit_check.py (44 of 44), tests/exit_order_check.py,
tests/fatal_exit_check.py, pass_cc_check.py --wall on rtss_limit.c, tools/check_content.py --staged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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